CN103175477A - Roof separation indicator - Google Patents
Roof separation indicator Download PDFInfo
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- CN103175477A CN103175477A CN 201310069968 CN201310069968A CN103175477A CN 103175477 A CN103175477 A CN 103175477A CN 201310069968 CN201310069968 CN 201310069968 CN 201310069968 A CN201310069968 A CN 201310069968A CN 103175477 A CN103175477 A CN 103175477A
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- photoelectric tube
- friction pulley
- separation indicator
- steel strand
- roof separation
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Abstract
An embodiment of the invention discloses a roof separation indicator and belongs to the technical field of separation detection. Steel strands can be kept located at an elastic tension device. Therefore, failure of a friction wheel caused by loosening of the steel strands is avoided effectively. Positive and reverse rotation data of the friction wheel can be accurately measured by a grating sensor, and separation can be detected accurately.
Description
Technical field
The present invention relates to a kind of absciss layer pick-up unit, relate in particular to a kind of roof separation indicator.
Background technology
The detection of mine roof and country rock is the big event of mine disaster prediction, and it is one of especially big disaster of all kinds of mines that the Roof Falling in Mine country rock caves in, and the production safety in mine in serious threat, can cause huge economic loss and casualties during generation.In recent years, due to the continuous extension of development end and the expansion of limit of mining, mine production develops in depth, and the threat of roof fall, landslide is also day by day serious, and the task of preventing and treating is also more and more arduous, and mine miner's life security in the serious threat of mine roof disaster.
At present, be generally that the absciss layer that adopts roof separation indicator to detect roof strata changes, to prevent the generation of caving-in accident, guarantee the safe construction in Safety of Coal Mine Production and tunnel.roof separation indicator claims again multipoint displacement meter, is divided into balanced type or straight-bar type, generally is comprised of basic point anchor, steel strand wires, sleeve, vernier, tensioning system, when the tunnel absciss layer changes, sensor can in time get off the timely interocclusal record of delta data, and store in the external data box, simultaneously the absciss layer situation of change is real-time transmitted to aboveground monitor supervision platform, the data analysis that observes with the comprehensive roof delamination to all kinds of tunnels, thereby draw different geologic conditions, the situations such as lithological change, summed up absciss layer amount in tunnel anchor net scope, in time take effective supporting measure, prevent the generation of top board slump accident, if tunnel bed separation displacement value surpasses the preset alarm threshold, also can report to the police by the trigger alarm device, thereby ensure safety in production.
At present, the sensor of known detection absciss layer data, its steel strand wires physical construction is in the steel wire tensioning of upper end, and due to the effect of device lower end damper, rope can only be advanced in the lower end, and can not rope stretching, makes wire rope stretch; Afterwards, if relaxing again, wire rope can make the effectively tensioning of wire rope that is wrapped on friction pulley, at this moment friction pulley lost efficacy, can not read corresponding reversed turning numerical value, and then cause the absciss layer data that finally record very inaccurate, very easily mislead construction and maintenance personal, bring very large inconvenience to mine operation.
In prior art, there are the following problems at least:
When 1, relaxing again after the first tensioning of wire rope stretches, tensioning system can not effectively carry out tensioning, makes friction pulley lose efficacy;
2, do not measure the device of friction pulley reversal data.
Summary of the invention
A kind of roof separation indicator now is provided, is applied to the detection of mine roof and country rock, by grating sensor and elastic stretching device, effectively realize absciss layer is reduced or increases the detection that changes, specifically be achieved through the following technical solutions:
A kind of roof separation indicator comprises that the basic point anchoring decides device, box body, and is fixedly installed on friction pulley and the damper of described box body inside, is provided with steel strand wires in described damper, wherein, also comprises:
Guide piece, adjusting gear, elastic stretching device and grating sensor;
Described steel strand wires are walked around described guide piece after the openend of described damper is drawn, pass through successively described elastic stretching device and described device for regulating direction, are wound around to be fixed in described basic point anchoring after described friction pulley and to decide on device;
Wherein, described grating sensor is fixedly installed on the box body at the described friction pulley back side, to detect the spin data of described friction pulley.
Above-mentioned roof separation indicator, wherein, described guide piece is fixedly installed on the top of described damper openend, contacts with described openend when avoiding described steel strand wires to draw; Described elastic stretching device is fixedly installed on the below of steel strand wires between described guide piece and described adjusting gear, with the described steel strand wires of tensioning; Described adjusting gear is fixedly installed on the below of described friction pulley one side, is wound around the cornerite of described friction pulley to adjust described steel strand wires.
Above-mentioned roof separation indicator, wherein, described guide piece, adjusting gear and elastic stretching device all are fixedly installed on described box body.
Above-mentioned roof separation indicator, wherein, described elastic stretching device comprises that the stationary installation, spring and the top that are provided with pipe box arrange the expansion link in wired hole, described stationary installation is fixedly installed on described box body, described spring housing is located on described expansion link, the two ends of described spring offset with described pipe box and described expansion link bottom respectively, and the top of described expansion link is passed described pipe box and moved up and down, and described steel strand wires pass described line hole.
Above-mentioned roof separation indicator, wherein, described basic point anchoring is decided device and is comprised at least one anchor fluke, wire rope on each anchor fluke is all drawn from a damper, walks around the guiding fixed pulley, after passing tensioning system, walk around the adjustment fixed pulley, be wound around one week of friction pulley and be fixed on described anchor fluke;
When described basic point anchoring is decided device and is set to two anchor flukes, can share described adjusting gear, and described adjusting gear is the smooth cylinder of periphery, described two anchor flukes share described adjusting gear, and two wire rope are walked around from the both sides of described cylinder respectively.
Above-mentioned roof separation indicator, wherein, described grating sensor comprises light sensation device, amplifying circuit, comparator circuit module, query processing module, display module and power supply, and is provided with the gear teeth on described friction pulley;
The corresponding described gear position of described light sensation device is fixedly installed on described box body, described power supply supply of electrical energy is given described light sensation device, transfer to the comparator circuit module with the light-sensing signal that the described gear teeth are corresponding after amplifying circuit amplifies and carry out analyzing and processing, the data message that described query processing module is transferred in described comparer is processed by described display module demonstration.
Above-mentioned roof separation indicator, wherein, described grating sensor includes at least two photoelectric tube circuit, and each photoelectric tube circuit includes:
The photoelectric tube that is electrically connected to the first power supply by the first resistance, and the minus earth of described photoelectric tube;
Second source is connected, passes through variable resistor ground connection and be connected the 3rd resistance and be connected with the output terminal of comparer by the collector of the amplifier in the second resistance and described photoelectric tube respectively; The grounded emitter of described amplifier, the positive pole of described comparer is connected with the collector of described amplifier, and the negative pole of described comparer is connected with described variable-resistance sliding end, and the output terminal of described comparer is connected with the input end of described query processing module.
Above-mentioned roof separation indicator, wherein, described photoelectric tube comprises the first photoelectric tube and the second photoelectric tube, distance between described the first photoelectric tube and described the second photoelectric tube is less than the width of gear teeth of described friction pulley and greater than half of this gear teeth width, or less than the width of a teeth groove of described friction pulley and greater than half of this space width.
Above-mentioned roof separation indicator, wherein, described query processing module is the AT89S52 chip, the input end of described AT89S52 chip comprises RST pin or P3.4/T0 pin.
Above-mentioned roof separation indicator, wherein, described display module comprises 75HC164 chip and at least two charactrons, the P0.3 pin of described AT89S52 chip is connected with the pin A of described 75HC164 chip, the P0.4 pin of described AT89S52 chip is connected with the pin B of described 75HC164 chip, and described 75HC164 chip is connected with described charactron respectively by data bus.
Technique scheme has following advantage or beneficial effect:
1, by elastic stretching device is set, can keep steel strand wires to be in all the time tensioning system, effectively avoid because the lax friction pulley that causes of steel strand wires lost efficacy;
2, can measure accurately the forward and backward data of friction pulley by the grating sensor that arranges, and then can detect the absciss layer situation accurately.
Description of drawings
Fig. 1 is roof separation indicator embodiment one box body inner structure schematic diagram of the present invention;
Fig. 2 is the structural representation of roof separation indicator embodiment of the present invention one photoelectric tube installation site;
Fig. 3 is the circuit theory diagrams of roof separation indicator embodiment one grating inductor of the present invention;
Fig. 4 is the structural representation of roof separation indicator embodiment one elastic stretching device of the present invention;
Structural representation when Fig. 5 is roof separation indicator embodiment one roof separation indicator work of the present invention;
Fig. 6 is roof separation indicator embodiment two box body inner structure schematic diagram of the present invention;
Structural representation when Fig. 7 is roof separation indicator embodiment two anchor fluke work of the present invention.
Embodiment
The invention will be further described below in conjunction with schematic diagram and concrete operations embodiment.
Embodiment one:
As shown in Figure 1, in the present embodiment, a kind of roof separation indicator is provided, comprises anchor fluke 16, push rod (not shown) and box body 1 and be arranged on the damper 11 with steel strand wires 17, leading block 12, elastic stretching device 13, device for regulating direction 14, friction pulley 15 and the grating sensor 4 of this box body 1 inside.
Walk around leading block 12 from the steel strand wires 17 that the outlet of damper 11 is drawn, walk around again device for regulating direction 14 through after elastic stretching device 13, be wound around friction pulley and be fixed on anchor fluke 16 by push rod after 15 1 weeks; Wherein, damper 11 is fixedly installed on box body 1 below inwall; Leading block 12 is fixed pulley, steel strand wires 17 outlets that should damper 11 are arranged at its top, so that the steel strand wires of walking around 17 do not contact with the opening part of damper 11, the optimum steel strand wires 17 that make are parallel to damper 11 opening directions, avoid producing unnecessary friction with minimum degree; Device for regulating direction 14 is also fixed pulley, is fixedly installed on the below of friction pulley 15 1 sides, is wrapped in the cornerite of steel strand wires 17 on friction pulley 15 in order to adjustment, is wound around to avoid producing; Elastic stretching device 13 is fixedly installed on the below of the steel strand wires of tensioning between leading block 12 and device for regulating direction 14, in order to tensioning steel strand wires 17, guarantee the friction force between steel strand wires 17 and friction pulley 15, avoid due to the lax situation that causes friction pulley 15 to lose efficacy of steel strand wires 17; Grating sensor 4 is fixedly installed on the back side box side wall of friction pulley 15, with the spin data of detection friction pulley 15, and after these data are processed, is sent on external monitor supervision platform and/or prior-warning device.
As shown in Figure 2, the gear teeth 18 of two corresponding friction pulleys 15 of identical photoelectric tube D1, D2 of grating sensor 4 are arranged on the inwall of box body 1, and the pass apart between the width L of S and the gear teeth 18 between photoelectric tube D1 and photoelectric tube D2 is: 0.5L＜S＜L; Preferably, photoelectric tube D1 and photoelectric tube D2 are separately positioned on 1/4 place of the gear teeth 18 transverse ends.
As shown in Figure 3, the circuit structure of grating sensor 4 comprises photoelectric tube D1 circuit, photoelectric tube D2 circuit, inquiry chip and display module; Above-mentioned photoelectric tube D1 circuit comprises:
The first power supply VCC1 is connected with the positive pole of photoelectric tube D1 by resistance R 1, and this photoelectric tube D1 minus earth; Second source VCC2 is connected, is connected with the output terminal of comparator C O1 by variable resistor R3 ground connection and by resistance R 4 with the collector c end of amplifier Q1 in photoelectric tube D1 by resistance R 2 respectively, the negative pole end "-" of comparator C O1 is connected with the sliding end of variable resistor R3, the positive terminal "+" of comparator C O1 and the collector c of amplifier D1 end is connected, and the emitter e end ground connection of amplifier Q1 in photoelectric tube D1; Wherein, photoelectric tube D2 circuit structure and photoelectric tube D1 circuit structure are identical.
Preferably, the resistance of resistance R 1 is 150 Ω, and the resistance of resistance R 2 is 5.1k Ω, and the resistance of variable resistor R3 is 10k Ω, and the resistance of resistance R 1 is 5.1k Ω.
Above-mentioned inquiry chip is the AT89S52 chip, and its RST pin is connected with the P3.4/T0 pin with the output terminal of comparator C O1 in two photoelectric tube circuit and is connected.
Above-mentioned display module comprises 74HC164 chip and two charactron DS1, DS2, the pin A of 74HC164 chip is connected with the pin P0.3 of AT89S52 chip, the pin B of 74HC164 chip is connected with the pin P0.4 of AT89S52 chip, and the pin q0-q7 of 74HC164 chip is connected with two charactron DS1, DS2 respectively by data bus.
As shown in Figure 4, elastic stretching device 13 comprises that the stationary installation 133, spring 134 and the top that are provided with pipe box arrange the expansion link 132 in wired hole 131, stationary installation is fixed 133 and is fixedly installed on the inside of 1 box body by bolt etc., spring 134 is set on expansion link 132, and the two ends of spring 134 offset with the bottom 135 of pipe box and expansion link 132 respectively, the top of expansion link 132 is passed this pipe box and can be moved up and down, and steel strand wires 17 are worn cable-through hole 131; Wherein, the flexible variable of expansion link 132 is 0-4cm.
Concrete, as shown in Fig. 1-5, after anchor fluke 16 is fixed on basic point, steel strand wires 17 tensionings, expansion link 132 is because steel strand wires 17 effects move upward, and this moment, spring 134 was in compressive state; Absciss layer between anchor fluke 16 and box body 1 increases, make anchor fluke 16 move upward with respect to box body 1, impelling steel strand wires 17 to drive friction pulley 15 rotates counterclockwise, and when the absciss layer between anchor fluke 16 and box body 1 reduces, steel strand wires 17 are lax, due to spring 134 tension force interaction energy tensioning steel strand wires, drive simultaneously the instantaneous pin of friction pulley 15 and rotate; Because photoelectric tube D1, D2 are arranged on the gear teeth 18 places, when the gear teeth 18 move on photoelectric tube, photoelectric tube output high level, otherwise, when teeth groove moves on photoelectric tube, output low level; Photoelectric tube D1, D2 output waveform after the AT89S52 chip is processed, thereby can judge sense of rotation and the rotation variable of friction pulley 15 according to phase differential, and demonstrate the move distance of anchor fluke 16 by code pipe DS1, DS2, thereby measure the absciss layer situation.
Wherein, adopt formula
To rotate variable and be converted into absciss layer displacement L, m is the number of teeth altogether of friction pulley 15, and r is the radius of friction pulley 15, and n is count value.
When carrying out the absciss layer detection, the general absciss layer detector that adopts two anchor flukes or three anchor flukes, although the absciss layer detector in the present embodiment only is provided with an anchor fluke, but can adopt simultaneously the structure in two or more the present embodiment to carry out the absciss layer detection, also a plurality of anchor fluke gear trains can be set in box body, to satisfy the demand of a plurality of detection basic points.
Embodiment two:
The present embodiment is two anchor fluke absciss layer detectors, on the basis of embodiment one, two cover anchor fluke gear trains is arranged on the inside of same box body simultaneously, and shares same adjusting gear.
As shown in Figure 6, the gearing identical with embodiment one respectively of steel strand wires 20 and steel strand wires 21 is set simultaneously in box body 2, and the smooth right cylinder 19 of common surface is as adjusting gear, to adjust the cornerite of steel strand wires on friction pulley.
As shown in Figure 7, with the anchor fluke 23 on steel strand wires 20 as deep basic point anchor, the degree of depth of 8m left and right generally is set by ground sense 3, with the anchor fluke 22 on steel strand wires 21 as superficial part basic point anchor, operated by rotary motion is at the 3-5m place, adopt the detection method of embodiment one, can detect simultaneously the displacement of anchor fluke 22 and anchor fluke 23, thereby realize the increase of absciss layer or the detection that reduces.
Above specific embodiments of the invention are described in detail, but the present invention is not restricted to specific embodiment described above, it is just as example.Such as the circuit that adopts other types, the rotation variable of friction pulley is converted into apart from length or by sense of rotation and judges anchor fluke direction of motion etc., as long as can reach the effect that absciss layer is detected.To those skilled in the art, any equivalent modifications and alternative also all among category of the present invention.Therefore, not breaking away from impartial conversion and the modification of having done under the spirit and scope of the present invention, all should contain within the scope of the invention.
By explanation and accompanying drawing, provided the exemplary embodiments of the ad hoc structure of embodiment, based on the present invention's spirit, also can do other conversion.Although foregoing invention has proposed existing preferred embodiment, yet these contents are not as limitation.
For a person skilled in the art, after reading above-mentioned explanation, various changes and modifications undoubtedly will be apparent.Therefore, appending claims should be regarded whole variations and the correction of containing true intention of the present invention and scope as.Any and all scope of equal value and contents, all should think still to belong in the intent of the present invention and scope in claims scope.
Claims (10)
1. roof separation indicator comprises that the basic point anchoring decides device, box body, and is fixedly installed on friction pulley and the damper of described box body inside, is provided with steel strand wires in described damper, it is characterized in that, also comprises:
Guide piece, adjusting gear, elastic stretching device and grating sensor;
Described steel strand wires are walked around described guide piece after the openend of described damper is drawn, pass through successively described elastic stretching device and described device for regulating direction, are wound around to be fixed in described basic point anchoring after described friction pulley and to decide on device;
Wherein, described grating sensor is fixedly installed on the box body at the described friction pulley back side, to detect the spin data of described friction pulley.
2. roof separation indicator as claimed in claim 1, is characterized in that, described guide piece is fixedly installed on the top of described damper openend, contacts with described openend when avoiding described steel strand wires to draw; Described elastic stretching device is fixedly installed on the below of steel strand wires between described guide piece and described adjusting gear, with the described steel strand wires of tensioning; Described adjusting gear is fixedly installed on the below of described friction pulley one side, is wound around the cornerite of described friction pulley to adjust described steel strand wires.
3. roof separation indicator as claimed in claim 1, is characterized in that, described guide piece, adjusting gear and elastic stretching device all are fixedly installed on described box body.
4. roof separation indicator as claimed in claim 1, it is characterized in that, described elastic stretching device comprises that the stationary installation, spring and the top that are provided with pipe box arrange the expansion link in wired hole, described stationary installation is fixedly installed on described box body, described spring housing is located on described expansion link, the two ends of described spring offset with described pipe box and described expansion link bottom respectively, and the top of described expansion link is passed described pipe box and moved up and down, and described steel strand wires pass described line hole.
5. roof separation indicator as claimed in claim 1, it is characterized in that, described basic point anchoring is decided device and is comprised at least one anchor fluke, wire rope on each anchor fluke is all drawn from a damper, walk around the guiding fixed pulley, after passing tensioning system, walk around the adjustment fixed pulley, be wound around one week of friction pulley and be fixed on described anchor fluke;
When described basic point anchoring is decided device and is set to two anchor flukes, can share described adjusting gear, and described adjusting gear is the smooth cylinder of periphery, described two anchor flukes share described adjusting gear, and two wire rope are walked around from the both sides of described cylinder respectively.
6. roof separation indicator as described in any one in claim 1-5, it is characterized in that, described grating sensor comprises light sensation device, amplifying circuit, comparator circuit module, query processing module, display module and power supply, and is provided with the gear teeth on described friction pulley;
The corresponding described gear position of described light sensation device is fixedly installed on described box body, described power supply supply of electrical energy is given described light sensation device, transfer to the comparator circuit module with the light-sensing signal that the described gear teeth are corresponding after amplifying circuit amplifies and carry out analyzing and processing, the data message that described query processing module is transferred in described comparer is processed by described display module demonstration.
7. roof separation indicator as claimed in claim 6, is characterized in that, described grating sensor includes at least two photoelectric tube circuit, and each photoelectric tube circuit includes:
The photoelectric tube that is electrically connected to the first power supply by the first resistance, and the minus earth of described photoelectric tube;
Second source is connected, passes through variable resistor ground connection and be connected the 3rd resistance and be connected with the output terminal of comparer by the collector of the amplifier in the second resistance and described photoelectric tube respectively; The grounded emitter of described amplifier, the positive pole of described comparer is connected with the collector of described amplifier, and the negative pole of described comparer is connected with described variable-resistance sliding end, and the output terminal of described comparer is connected with the input end of described query processing module.
8. roof separation indicator as claimed in claim 7, it is characterized in that, described photoelectric tube comprises the first photoelectric tube and the second photoelectric tube, distance between described the first photoelectric tube and described the second photoelectric tube is less than the width of gear teeth of described friction pulley and greater than half of this gear teeth width, or less than the width of a teeth groove of described friction pulley and greater than half of this space width.
9. roof separation indicator as claimed in claim 6, is characterized in that, described query processing module is the AT89S52 chip, and the input end of described AT89S52 chip comprises RST pin or P3.4/T0 pin.
10. roof separation indicator as claimed in claim 9, it is characterized in that, described display module comprises 75HC164 chip and at least two charactrons, the P0.3 pin of described AT89S52 chip is connected with the pin A of described 75HC164 chip, the P0.4 pin of described AT89S52 chip is connected with the pin B of described 75HC164 chip, and described 75HC164 chip is connected with described charactron respectively by data bus.
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| CN 201310069968 CN103175477A (en) | 2013-03-05 | 2013-03-05 | Roof separation indicator |
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| CN 201310069968 CN103175477A (en) | 2013-03-05 | 2013-03-05 | Roof separation indicator |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105563605A (en) * | 2016-01-18 | 2016-05-11 | 泗阳蓝阳托盘设备科技有限公司 | Reinforcing rib tensioning device |
| CN105563607A (en) * | 2016-01-18 | 2016-05-11 | 泗阳蓝阳托盘设备科技有限公司 | Rib feeding device of production equipment for plant fiber products |
| CN106643413A (en) * | 2017-01-23 | 2017-05-10 | 陕西煤业化工技术研究院有限责任公司 | Roof separation indicator system |
| CN108302172A (en) * | 2018-01-15 | 2018-07-20 | 清华大学 | A kind of optionally rotated rope closed-loop drive device based on double friction pulleys |
| CN108917693A (en) * | 2018-06-11 | 2018-11-30 | 中国矿业大学 | A kind of reusable large range high precision separation indicator and its installation measurement method |
| CN110006311A (en) * | 2019-04-25 | 2019-07-12 | 江西合博科技有限公司 | A kind of strata displacement quantity monitoring method based on belt transmission |
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2013
- 2013-03-05 CN CN 201310069968 patent/CN103175477A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105563605A (en) * | 2016-01-18 | 2016-05-11 | 泗阳蓝阳托盘设备科技有限公司 | Reinforcing rib tensioning device |
| CN105563607A (en) * | 2016-01-18 | 2016-05-11 | 泗阳蓝阳托盘设备科技有限公司 | Rib feeding device of production equipment for plant fiber products |
| CN106643413A (en) * | 2017-01-23 | 2017-05-10 | 陕西煤业化工技术研究院有限责任公司 | Roof separation indicator system |
| CN106643413B (en) * | 2017-01-23 | 2024-02-27 | 陕西煤业化工技术研究院有限责任公司 | Roof separation layer appearance system |
| CN108302172A (en) * | 2018-01-15 | 2018-07-20 | 清华大学 | A kind of optionally rotated rope closed-loop drive device based on double friction pulleys |
| CN108302172B (en) * | 2018-01-15 | 2020-08-25 | 清华大学 | Arbitrarily steering cable closed-loop transmission device based on double friction wheels |
| CN108917693A (en) * | 2018-06-11 | 2018-11-30 | 中国矿业大学 | A kind of reusable large range high precision separation indicator and its installation measurement method |
| CN110006311A (en) * | 2019-04-25 | 2019-07-12 | 江西合博科技有限公司 | A kind of strata displacement quantity monitoring method based on belt transmission |
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Application publication date: 20130626 |